Machine for flanging the ends of pipes or other tubular bodies.



PATENTED FEB. '7, 1905.

L. D. CHANDLER.

MACHINE FOR FLANGING THE ENDS 0F PIPES OR OTHER TUBULAR BODIES.

APPLICATION TILED AUG.11, 1904.

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PATENTED FEB. -'7, 1905. L. D. CHANDLER. MACHINE FOR FLANGING THE ENDSOF PIPES OR OTHER TUBULAR BODIES.

APPLICATION FILED AUG. 11, 1904.

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APPLIOATION FILED AUG.11.1904.

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MACHINE FOR FLANGING THE ENDS OP PIPES OR OTHER TUBULAR BODIES.

PATENTED FEB. 7, 1905.

L. D. CHANDLER. MACHINE FOR PLANGING THE ENDS OP PIPES OR OTHER TUBULARBODIES.

APPLIGATION FILED AUG. 11, 1904.

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qwumgyihy f MIN/WM Z .w/% {QMWC UNITED STATES Patented February '7,1905.

PATENT OFFICE.

LEONARD DEXTER CHANDLER, OF SGMERVILLE, MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 782,005, dated February7, 1905.

Application filed August 11. 1904. Serial No. 220,441.

To 7/ u'im'nt it puny concern.-

Be itknown that I, LEONARD DnxrenOrmN- DLER, residing in the city ofSomerville, county of Middlesex, and State of Massachusetts, haveinvented new and useful lmprovementsin Machines for Flang'ing the Endsof Pipes or other Tubular Bodies, of which the following is aspecification.

My invention relates to that class of machines used for turning over,expanding, or fianging the ends of pipes or tubes.

The object of my invention is to produce a simple eflicient machine theoperation of which will economize in time and cost and produce a flangeor lip on the ends of the pipes of maximum thickness and high degree ofuniformity and finish and in every way mechanically superior to theflange made by the sledge or hammer method.

In the accompanying drawings, Figure 1 is a side elevation of themachine, the top of the face-plate being broken away, showing insection. Fig. 2 is a front end elevation of the machine. Fig. 3 is apart section through the radial carriage on the line A B, Fig. 1. Fig.4: is a vertical half-section through the front part of the machine,showing the principal mechanism with the roller in its middle flangingposition. Fig. 5 is a side elevation of a portable oil-furnace forheating the ends of the pipes.

In the different figures the similar parts are similarly numbered.

in Fig. 1, 1 is the pipe or other tubular body to be flanged over. 2 isa containingflange placed over the end of said pipe and supports the lipof said pipe after it is flanged over. 3 is the Hanging-roller. 4:, Fig.1, is the roller shaft or pin. 5 is a flat plate-sector. Theroller-shaft at forms part of, or is rigidly connected to, said sector5. 6 a d T are circular ribs or guides on each side of the sector 5 andconcentric about the point 0. 8 represents worm-wheel teeth cut in theouter circumference of the sector 5,concentric about the point 0, and bymeans of which the sector is driven. 0 is a point on the surface of theroller, although the exact location of this point is not important asregards the principle of the machine, except that it must be external tothe axis of the roller and generally external to the roller itself. Thepoint that I have chosen (marked 0) is the intersection of the face ofthe flanged-over lip with the adjacent element of the surface of theroller when the axis of said roller is parallel to the axis of the pipe.9 is a radial carriage provided with two projecting arms 10 and 11,respectively, stiffened by ribs and between which the rollercarryingsector is carried and moves. 12 and 13 are circular ways or guides cutin the inner faces of the arms 10 and 11, respectively, for receivingthe guides 6 and 7 and definitely determining the motion of the sector5, and so of the roller 3. 1a is a pocket cut in the back of saidcarriage S) for receiving and carrying a worm 15, which gives the sector5, and thus the roller 3, their inclining motion. 16 is a lug projectingfrom the back of the carriage 9 and is in threaded engagement with aradial adjusting screw. 17 is the main shaft or spindle of the machineand carries fastened to its front end a face-plate 18. 19 and 20 areways in the front face of the faceplate 18, in which the radial carriage9 slides. 21 is a radial slot in the face-plate 18, through which thelug 16 projects. radial splined shaft having near to its outer end abearing in a lug and at its inner end a bearing 2- in the carriage 9.\Vorm 15 is free to slide over the shaft 22, which acts as its axle anddrives it by means of a key fastened in the worm and sliding in thespline of said shaft 22. Shaft 22 also holds the worm in gear with thesector 5. Radial motion of the shaft .22 is prevented by the lug 23,which is fastened to the face-plate 18. is a bevelgear fastened totheouter end of the shaft 26 is a large hand-wheel having bearings inthe front face of the face-plate 18 at 27 and is provided with a largebevel-gear 28 near its inner circiunference which engages and drives thebevel-gear 25, and thus the shaft 22. 29 is another hand-wheel havingbearings in the rear face of the face-plate 18 at 30 and is providedwith a large bevel-gear 31 near its inner circumference. 32 is ascrewshaft in threaded engagement with the lug 16 and has a bearing inthe lug 33, which is fastened to the rear face of the face-plate 1.8 and22 represents a takes up the radial thrust of the said screwshaft 32. 34is a bevel-gear fastened to the outer end of the shaft 32 and in gearwith the large bevel-gear 31 on the hand-wheel 29, by

means of which it is driven. 35 is the main machine-frame having the twomain bearings 36 and 37, in which is carried and revolves the main shaft17, and thus the machine. 38 is a motor mounted on the frame 35 anddrives the main shaft 17 through spur-gears, either directly or throughthe back gears, as shown. The frame 35 slides in ways 39 on anintermediate carriage 4:0 and is adjusted on said ways 39 by means ofthe hand-wheel 41, through the bevel-gears 42 and 43 and the screw-shaft44:, which is in threaded engagement with a lug L5, projecting from theunder machine and that the face of the containingflange is perfectlynormal to the axis of the pipe, with the end of the pipe projectingthrough it the exact distance to give the re quired dimensions to thefinished flanged-over lip. The roller-axis is now brought parallel tothe pipe or machine axis by turning the large hand-wheel 26, the motionbeing transmitted to the roller through the bevel-gears 28 and. 25, thesplined shaft 22, the worm 15, and the roller-sector 5. The radialposition of the carriage 9, and thus the eccentricity of the roller 3,is now adjusted until the roller will just enter the pipe, as shown inFig. 1. This is done by turning the large hand-wheel 29, the motionbeing transmitted, through the bevel-gears 31 and 34: and thescrew-shaft 32,

to the lug 16, and so to the carriage 9. The machine is now backed awayfrom the end of the pipe on the main ways 46 by means of the hand-wheel17. A portable furnace is now brought over the end of the pipe (shown inFig. 5) and the pipe is heated to the required temperature. Thenecessity for this heating operation will depend on the kind of pipe andon the degree of Hanging-over required. The furnace is now removed. Themachine is set in motion by means of the motor and then is oved up onthe main bedways until the roller a ntered the pipe the requireddistance, whe. machine is securely clamped in position o. main bed. Theposition of the roller in tn. pipe may be accurately adjusted by meansof the lead-screw adjustment of the *frame 35 on the carriage 40. Theroller now simply revolves around on the inside surface of the pipe,doing no work or fianging. Now in order to flange the end of the pipe itis necessary that the roller be given an increasing inclination to theaxis of the pipe while still having its revolving motion. This is doneby simply retarding the motion of the handwheel 26, which gives arelative change of Velocity to the hand-wheel and face-plate, and thismotion is transmitted to the roller, as before stated. This retarding orbraking action is very easily performed, as the machine turns veryslowly. When the inclination of the roller has reached a point so thatthe turnedover lip is normal to the axis of the pipe, the hand-wheel isallowed to turn with the faceplate, thus giving no more inclination tothe roller. The machine is now speeded up by throwing out the back gearsor by other means and is also given a slight feed against the face ofthe turned-over lip by means of the lead-screw 4.4:. This forces the lipto a firm and true bearing against the supportingflange and gives itsfront face asmooth, even, and finished surface requiring no furthertoolfinish, thus completing the operation.

With the poorer qualities of lap-welded pipe it may be foundadvantageous to give the machine a reversing motion, so as to take someof the stress away from the lap or seam of the pipethat is, the rollerwill flange over the end of the pipe from one side of the weld around tothe other side, when the roller will be reversed and this operationcontinued until the pipe is nearly turned over to its final position,when the welded portion will be turned by itself, and then the machinecan be given a continuous motion in one direction for finishing. Thisreversing motion does not alter at all the principle or the efiiciencyof the machine. i

In order that the pipe may be properly turned over without undulypressing the pipe against the containing-flange and still give the pipeits sharp bending at the proper point, it is necessary that the rollershould have an inclination about a certain point external to its ownaxis. The point that I have chosen is marked 0 and located as beforestated. In order that the roller may have this inclination about thispoint, it is simply necessary to place the roller on a pin or shaft fastto and located near the center or apex of a sector with its center orapex at the point 0, said sector being caused to turn about this pointas a center by guides on its two opposite parallel faces, concentricwith the pointO and driven through the arc of a worm-wheel, alsoconcentric with the point 0. This motion of the roller about a pointeccentric or external to its own axis and generally to the roller itselfis a very vital and important feature of this machine.

Having thus described my invention, what I claim as my invention, anddesire to secure by Letters Patent, is

1. In combination in a Hanging-machine, a flanging-roller; a rollershaft or pin for carrying said roller, and on which it turns; aplatesector carrying rigidly connected to itself said roller-shaft;circular ways or guides, concentric about a point on the surface of saidroller, on both sides of said sector for guiding it; worm-wheel teethcut in the circumference of said sector, and concentric about saidpoint; a radial carriage; means for the radial adjustment of saidcarriage; two parallel arms or guides projecting from the front of saidcarriage and carrying said sector between them; ways or guides,concentric about above said point, on the outer extremities of saidparallel arms or guides for guiding the said sector; a pocket formed inthe back of said radial carriage; a worm mounted in said pocket and ingear with said worm-wheel sector; a radial splined shaft for drivingsaid worm and holding it in gear; a main shaft; a face-plate mounted on,and fastened rigidly to, the front end of the said main shaft; radialways on the front of the said face-plate for receiving and guiding saidradial carriage; a large hand-wheel mounted in and free to turn inbearings on the front of said faceplate; a large bevel-gear cut in theinner circumference of said hand-wheel; a small bevelgear fastened tothe outer end of said splined shaft, and in gear with said largebevel-gear; a lug fastened to the front of said face-plate, andfurnishing a bearing for the outer end of said splined shaft; bearingsin the said radial carriage for guiding the inner end of said splinedshaft; a main frame provided with two bearings for the said main shaft;a motor in spur-gear connection with said main shaft for driving it; anintermediate carriage provided with longitudinal axial ways on its topfor receiving said main frame; a screwshaft or lead-screw adjustment ofsaid main frame on said intermediate carriage; a main bed or frameprovided with longitudinal ways for receiving said intermediatecarriage; a rack-and-pinion adjustment of said intermediate carriage onsaid main bedways, all substantially as shown and described.

2. In a hanging-machine,the combination of, a face-plate fastened to thefront end of a main shaft or spindle; radial ways on the front of saidface-plate; a radial carriage sliding in said ways; two parallel lugsprojecting from the front of said radial carriage; a plate-sectorcarried between said two lugs; a roller pin or shaft carried by saidplate-sector near its center; a hanging-roller mounted on saidroller-pin; circular ways concentric about a point on the surface ofsaid flanging-roller, formed on the inner adjacent sides of saidprojecting lugs near their outer extremities; circular ribs concentricabout the said point on the surface of said hanging-roller, on the twoopposite parallel sides of said plate-sector, fitting in, and moving inthe said circular ways in the said projecting lugs; means for producingmotion of inclination of said flanging-roller about a point eccentric toits own axis; worm-wheel teeth concentric about the said point cut onthe outer circumference of said sector; a pocket formed in the back ofsaid radial carriage; a worm mounted in said pocket and in gear withsaid sector worm-wheel; a radial splined shaft passing through said wormand pocket; a key fastened in said worm and sliding in the spline ofsaid splined shaft; bearings on either side of said pocket for the innerend of said splined shaft; a lug fastened to the front of saidface-plate furnishing a bearing for the outer end of said splined shaft;a large hand-wheel mounted in bearings on the front face of saidface-plate; a large bevelgear cut on said hand-wheel near its innercircumference; a small bevel-gear fastened to the outer end of saidradial splined shaft and in gear with said large bevel-gear, allsubstantially as shown and described.

3. In combination in a flanging-machine; main bed-guides; anintermediate carriage sliding on said main bed-guides; a rack-andpiniondrive for said intermediate carriage on said main bed-guides;longitudinal ways on the top of said intermediate carriage; a mainbearing-frame sliding in said longitudinal ways; a screw-shaftadjustment of said main bearing-frame on said intermediate carriage; amain shaft or spindle supported in said main frame-bearings; means fordriving said main shaft; a face-plate fastened to the front end of Saidmain shaft; a radial carriage sliding in radial ways in the front ofsaid face-plate; two parallel projecting lugs or arms projecting fromthe front face of said carriage; a plate-sector carried between saidprojecting lugs; circular guides on the opposite faces of saidsector-fitting in adjacent ways in the said lugs for guiding saidsector; means for inclining said sector in said circular guides; aroller shaft or pin, fastened to said sector near its center; aHanging-roller mounted on and free to turn on said rollerpin; ahand-wheel provided with a bevel-gear near its inner circumferencemounted in, and free to turn in, bearings on the front face of saidface-plate; a radial splined shaft; a bevelgear fastened to the outerend of said splined shaft and in gear with said hand-wheel; a worm,driven by and free to slide over said splined shaft and mounted in apocket in the said radial carriage, and in gear with the saidplate-sector, all substantially as shown and described.

In testimony whereof I herewith set my hand in the presence of twowitnesses.

LEONARD DEXTER CllAND LER.

\Vitnesses:

W ILLIAM J. JONES, \V. E. AnxoLi).

